/Engine/Source/Runtime/Interchange/Core/Public/Nodes/InterchangeBaseNode.h
Add an attribute to the node
template<typename T> [UE::Interchange::FAttributeStorage::TAttributeHandle](API\Runtime\InterchangeCore\Types\FAttributeStorage\TAttributeHandle)< T > RegisterAttribute ( const [UE::Interchange::FAttributeKey](API\Runtime\InterchangeCore\Types\FAttributeKey) & NodeAttributeKey, const T & Value )